Answer
$13.4\ ft$
Work Step by Step
Use the figure given in the exercise, we have the shadow length $L=\frac{5.75}{tan(23.4^\circ)}\approx13.4\ ft$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 5 - Trigonometric Functions - 5.4 Solutions and Applications off Right Triangles - 5.4 Exercises - Page 548: 47
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